Teeth- How old do you think she looks?

Based on the following picture of her teeth, how old do you think she is?
I was told she is about 12 years old this year. I'm not sure since there is no verification that it's a correct estimate.

I know that some groove on there teeth can judge the age of a horse, but I just don't understand it enough to judge her myself.

Here's the picture: http://imageshack.us/a/img853/6043/smilebby.jpg

Thanks to all who can help!

I would not venture a guess without a close-up side view and a view of the 'biting surface' of the bottom incisors.

I agree with Cherie (not that I often disagree with her!) it is impossible to tell from that picture.
You need to be able to see the side view and the view of the tables - that is what tells you their age, unless they are under the age of three when you can tell from just the central and lateral teeth.

I'll go out on a limb and say 20yo. I can see the LH top molar, and the "Galvayne's Groove" looks all of the way down with no receding, which would mean 20+yo. ALSO, if you don't read teeth, it's easy to sell a 20yo as a 12yo to you.
Let me know if I'm wrong. I've been wrong about things before in my life, and I can take it. =b

If the line you can see is indeed the Galvayne's Groove, the horse will be about 20. I have seen younger horses with lines but on grooves.

From the angle shown, it really appears that the teeth may be too short and too upright to be that old. Before I would say for sure, I want to see length and angle from the side and the shape of the biting surface. At 20, it will be triangular. Teeth can be short of a horse has been on desert or short grass in sandy areas, but the shape of the tooth should not lie.

I will try my best to get a picture from the side and the surface of the teeth today when I go to the barn!
It'll be good practice to get her used to me messing with her mouth, as well. C:

I see why you would think she would be 20+, but she doesn't act like it at all. She has no soreness, joint issues, etc. and has the energy of a four year old. Maybe it's just her breed characteristics, but I sure hope she's not that old. I JUST STARTED TRAINING HER. D':

Oh, and I'm pretty sure that they wouldn't have lied to me about her age to sell her. I have record of her previous two homes, and both thought she was about twelve. I'm sure they had some reason to guess that age... but maybe they're wrong. Oh gosh, I'm excited and nervous to post the pictures later. I sure hope she's at least under 15. /crosses fingers

When I was 12 my mom bought 2 horses, they were sold as 15/16 but a few weeks later when the vet came out it was confirmed that they were both 25-28. Both were full of energy and you would never guess their age. The mare, Tiffany had to be put down 8 years ago due to a suspected abdominal tumor, We still have the gelding, Blue who is about 42 now, aside from a leg injury last October he is perfectly sound(the leg that was injured he has a little hitch in). Anyway, the point of the post is not all 20 year old's act their age

I sure agree with that. I've taken care of thoroughbreds that would literally run themselves to death. It was difficult to tell them they were too old to be doing the kind of work the other horses could do. Something just seems to me that she doesn't act old, though. Something about her personality or something tells me otherwise, but I could be wrong! I always learn something new every day.

PICTURES COMING SHORTLY! :'D

I know this probably isn't the best picture (since her teeth aren't lined up), but it took ten minutes for her to let me even do this! XD I never knew it would be so difficult. I thought she would be ok with it since I give her wormers, but NOPE. She had to be a difficult one. C;

Link! (sorry, it was too big to post here)
http://imageshack.us/a/img832/7776/teethsideshot.jpg

Teeth can be tricky. What you need is a pic of the occlusal (biting) surface of the teeth, a pic of the "corners" (3rd incisors) and a profile shot to see the angle at which the teeth come together. We put all these pieces together to judge an age. Things like dental care and cribbing can through a hitch into getting an accurate age but shouldn't throw you off by more than a few years. Galvayne's groove has been shown in multiple scientific studies to be wholly inaccurate and I never use it when trying to age a horse.